Emerald

This gray-green moss is commonly found blanketing tiny areas In rainy mountain ranges.
It is average-sized, growing up to 3 inches (8 cm) tall. It forms in sparse patches and they spread and grow quickly, and is very light; it dislikes being stepped on.
When mature, emerald oblong capsules grow at the end of short, lime green sporophytes, eventually opening up during the early summer to release thousands of spores.